Our study provides a review of argument-based scientific literature to address conscientious objections to end-of-life procedures. We also proposed a taxonomy based on this study that might facilitate clarification of this discussion at a basic level. The three clusters of our taxonomy include (1) nonconventional compatibilists that claim that conscientious objection against morally repugnant social conventions is compatible with professional obligation, (2) conventional compatibilists that suggest that conscientious objection against social convention is permissible under certain terms of compromise, and (3) (...) conventional incompatibilists that aver that conscientious objection is incompatible with the privileges and obligations of a health care provider. We conclude with three moments of reflective pause. The first pause reflects on the question of the health of a society's pluralism. The second pause results in suggested practice guidelines for conscientious objection to facilitate cooperation. The final pause reveals the need for further research to uncover a global perspective. (shrink)